gov/nasa/worldwind/formats/gpx/GpxTrackSegment.java

   1 /*
   2 Copyright (C) 2001, 2006 United States Government
   3 as represented by the Administrator of the
   4 National Aeronautics and Space Administration.
   5 All Rights Reserved.
   6 */
   7 package gov.nasa.worldwind.formats.gpx;
   8
   9 import gov.nasa.worldwind.tracks.*;
  10 import gov.nasa.worldwind.util.Logging;
  11
  12 /**
  13  * @author tag
  14  * @version $Id: GpxTrackSegment.java 2471 2007-07-31 21:50:57Z tgaskins $
  15  */
  16 public class GpxTrackSegment extends gov.nasa.worldwind.formats.gpx.ElementParser
  17     implements TrackSegment
  18 {
  19     private java.util.List<TrackPoint> points =
  20         new java.util.ArrayList<TrackPoint>();
  21
  22     public GpxTrackSegment(String uri, String lname, String qname, org.xml.sax.Attributes attributes)
  23     {
  24         super("trkseg");
  25
  26         // dont' validate uri, lname, qname or attributes as they aren't used.
  27     }
  28
  29     public java.util.List<TrackPoint> getPoints()
  30     {
  31         return this.points;
  32     }
  33
  34     /**
  35      * @param uri
  36      * @param lname
  37      * @param qname
  38      * @param attributes
  39      * @throws IllegalArgumentException if any parameter is null
  40      * @throws org.xml.sax.SAXException
  41      */
  42     @Override
  43     public void doStartElement(String uri, String lname, String qname, org.xml.sax.Attributes attributes)
  44         throws org.xml.sax.SAXException
  45     {
  46         if (lname == null)
  47         {
  48             String msg = Logging.getMessage("nullValue.LNameIsNull");
  49             Logging.logger().severe(msg);
  50             throw new IllegalArgumentException(msg);
  51         }
  52
  53         if (uri == null)
  54         {
  55             String msg = Logging.getMessage("nullValue.URIIsNull");
  56             Logging.logger().severe(msg);
  57             throw new IllegalArgumentException(msg);
  58         }
  59         if (qname == null)
  60         {
  61             String msg = Logging.getMessage("nullValue.QNameIsNull");
  62             Logging.logger().severe(msg);
  63             throw new IllegalArgumentException(msg);
  64         }
  65         if (attributes == null)
  66         {
  67             String msg = Logging.getMessage("nullValue.AttributesIsNull");
  68             Logging.logger().severe(msg);
  69             throw new IllegalArgumentException(msg);
  70         }
  71
  72         if (lname.equalsIgnoreCase("trkpt"))
  73         {
  74             this.currentElement = new gov.nasa.worldwind.formats.gpx.GpxTrackPoint(uri, lname, qname, attributes);
  75             this.points.add((gov.nasa.worldwind.formats.gpx.GpxTrackPoint) this.currentElement);
  76         }
  77     }
  78 }